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AD8231 op-amp bandwidth and part number

I have implemented a Sallen-Key high-pass filter using the op-amp in the AD8231. The high-pass filter response is there but there is also a low-pass response around 100kHz.

Is this due to the frequency response of the op-amp itself or can it be increased?

Also, what is the part number for this op-amp? There is no reference to a specific part number for it in the data sheet for the AD8231.

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  • FormerMember
    0 FormerMember
on Apr 28, 2016 1:03 AM

All this time I was looking at the Filter Wizard, assuming you were talking about the graphs the

tool generated with the OP281 and the ADA4004.  Did you actually build some hardware

and look at it on the bench?

Harry

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  • FormerMember
    0 FormerMember
on Apr 28, 2016 1:03 AM

All this time I was looking at the Filter Wizard, assuming you were talking about the graphs the

tool generated with the OP281 and the ADA4004.  Did you actually build some hardware

and look at it on the bench?

Harry

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